The Barrett MRAD / MK22 / MRAD‑SMR 10‑round "A" Stainless‑Spring .338 Lapua Magnum Magazine Assembly is a detachable box magazine designed for rifles using the MRAD‑series "A‑type" magazine pattern. Built for .338 Lapua Magnum cartridges, the assembly incorporates a stainless‑steel spring to support consistent feeding and reliable operation under varying conditions. The 10‑round configuration provides standard capacity for precision‑rifle applications while maintaining compatibility with MRAD‑family platforms configured for the .338 Lapua Magnum chambering. This magazine assembly is intended as a durable, platform‑specific component for users requiring a replacement or dedicated magazine for the MRAD or MK22 rifle systems.